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Quiz 4 (10 points) - October 4, 2000
CASE 4: Opportunistic Mycoses - Max Fiskin, Ph.D.
1. Name (Genus and species) two organisms that are major agents of
Rhino-facial mycoses. (2 pts)
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a. Aspergillus flavus
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b. Rhizopus arrhizus
2. Compare the (a) septation and (b) branching of the hyphae in the
zygomycetes and the ascomycetes that cause rhino-facial mycoses. (4 pts)
| Ascomycetes |
Zygomycetes |
| a. regularly septate |
a. septa rare |
| b. acute branching |
b. right angle branches |
3. Name (a) the organism that causes the most rapidly mortal mycoses,
and (b) the tissue target for its rapid dissemination. (2 pts)
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a. Rhizopus arrhizus
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b. cerebral tissue
4. Name a disease or treatment regimen in which neutropenia is a common
challenge. (1 pt)
5. For which class of antifungals is isolation of resistant strains
least common. (1 pt)
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